Writing implement with a cap that can be screwed on

Abstract

A writing implement includes a shaft part that holds a stylus and a cap, which can be screwed onto the shaft part in order to cover the stylus from an initial position of engagement up to a final position. A resistance against the screwing on, which is greater than the resistance when screwing on from the initial position of engagement up to an intermediate position, acts upon the cap when screwing on the cap from the intermediate position, which is located between the initial position of engagement and the final position, until reaching the final position.

1. A writing implement having a shaft part, on which a writing tip is mounted, and a cap that can be screwed onto the shaft part from a first engaged position to an end position, for covering the writing tip,
 wherein when the cap is screwed on there is a resistance to screwing on the cap from an intermediate position, which is located between the first engaged position and the end position, until the end position is reached, this resistance being greater than the resistance when the cap is screwed on from the first engaged position to the intermediate position, 
 wherein the greater resistance is created by a spring device acting on the cap, and 
 wherein the spring device includes a spring which acts in the axial direction of the shaft part and a support ring which can be displaced axially in opposition to a spring force of the spring and with which the cap comes into engagement in the intermediate position, with the result that as screwing on continues, the support ring is moved away from an abutment shoulder of the shaft part, in opposition to the spring force. 
 
   
   
     2. The writing implement as claimed in  claim 1 , wherein the spring is in the form of a corrugated spring disk. 
   
   
     3. The writing implement as claimed in  claim 1 , wherein the end position is formed by the abutment of a stop face of the cap against a shoulder of the shaft part. 
   
   
     4. The writing implement as claimed in  claim 3 , wherein the stop face is an end face that surrounds the cap opening. 
   
   
     5. A writing implement comprising:
 a shaft part on which a writing tip is mounted at one end; 
 a cap threadedly securable to the shaft part; and 
 a spring device coupled with the shaft part and including a support ring displaceable between a neutral position and a compressed position based on an engagement position of the cap on the shaft part, wherein the support ring is positioned relative to the cap and the shaft part such that the support ring maintains the neutral position when the cap is screwed from a first engaged position to an intermediate position and such that the support ring is displaced relative to the shaft part from the neutral position to the compressed position as the cap is screwed from the intermediate position toward an end position. 
 
   
   
     6. The writing implement as claimed in  claim 5 , wherein the spring device comprises a spring that biases the support ring toward the neutral position, and wherein the shaft part includes a shoulder defining an annular space in which the spring and the support ring are disposed surrounding the shaft part.